[Freetype] Composite Glyph rendering

[Brian Stell]

This question is fairly specific detail about the internal details
of TrueType but perhaps someone (David?) may have an idea.

I'm having a problem rendering Simplified Chinese in Ghostscript.

FreeType2 seems to render properly but in Ghostscript the sub glyphs
end up on top of each other. When Ghostscript positions the sub 
glyph it offsets the subglyph X pos minus xMin.

When rendering composite glyphs how does one handle the sub glyph
lsb? Could someone (David?) point me to the code in FT2 that handles 
subglyph X/Y positioning.

-- 
Brian Stell